1990490878

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{397939}}^1$

素因数の和:398043

約数の個数: 16

約数和(自身を含む): 3108707280

約数和(自身を除く): 1118216402

約数列:

[1, 2, 41, 61, 82, 122, 2501, 5002, 397939, 795878, 16315499, 24274279, 32630998, 48548558, 995245439, 1990490878]

約数ペア:

[(1, 1990490878), (2, 995245439), (41, 48548558), (61, 32630998), (82, 24274279), (122, 16315499), (2501, 795878), (5002, 397939)]